Quarterly Statement Of Cash Flows
| Concept | As at 2024-11-30 | 2023-12-01 to 2024-11-30 | 2022-12-01 to 2023-11-30 | As at 2023-11-30 | As at 2022-11-30 | 
|---|---|---|---|---|---|
| Quarterly statement of cash flows | |||||
| Statement of cash flows | |||||
| Cash flows from operating activities | |||||
| Subtotal | — | 
                                                242,194,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                185,042,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest and dividends received | — | 
                                                39,328,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                33,232,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Interest paid | — | 
                                                -10,867,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -8,084,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) operating activities | — | 
                                                139,530,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                165,672,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from investing activities | |||||
| Purchase of property, plant and equipment | — | 
                                                -264,530,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -237,603,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Purchase of investment securities | — | 
                                                -360,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -360,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Proceeds from sale of investment securities | — | 
                                                111,845,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                4,885,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,142,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) investing activities | — | 
                                                -148,759,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -242,758,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash flows from financing activities | |||||
| Proceeds from long-term borrowings | — | 
                                                550,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                550,000,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Repayments of long-term borrowings | — | 
                                                -488,916,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -507,201,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Dividends paid | — | 
                                                -29,899,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -24,917,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Other, net | — | 
                                                
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -66,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net cash provided by (used in) financing activities | — | 
                                                20,493,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -62,702,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Effect of exchange rate change on cash and cash equivalents | — | 
                                                154,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                946,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Net increase (decrease) in cash and cash equivalents | — | 
                                                11,419,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                -138,841,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
| Cash and cash equivalents | 
                                                1,914,788,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | — | — | 
                                                1,903,369,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             | 
                                                2,042,211,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             |